1006455699640 has 16 divisors (see below), whose sum is σ = 2264525324280. Its totient is φ = 402582279840.

The previous prime is 1006455699581. The next prime is 1006455699671. The reversal of 1006455699640 is 469965546001.

It is a super-2 number, since 2×1006455699640² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12580696206 + ... + 12580696285.

Almost surely, 2^{1006455699640} is an apocalyptic number.

1006455699640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1006455699640 is an abundant number, since it is smaller than the sum of its proper divisors (1258069624640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1006455699640 is a wasteful number, since it uses less digits than its factorization.

1006455699640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25161392502 (or 25161392498 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 55.

The spelling of 1006455699640 in words is "one trillion, six billion, four hundred fifty-five million, six hundred ninety-nine thousand, six hundred forty".